body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

.game-container {
    text-align: center;
}

#gameCanvas {
    border: 3px solid #333;
    background-color: #fff;
    box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

.score {
    font-family: Arial, sans-serif;
    font-size: 24px;
    margin: 20px 0;
    color: #444;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    margin-top: 10px;
}

button:hover {
    background-color: #45a049;
}